Copying-press.



No. 636,55l. Patent 11 a. J POST. a Nov. 7, I899.

COPYING PRESS.

(Application 310d my 9, 1899.)

(lo llodal.)

1 mam: PtTERs co. Pnofauma" wusnmcmu, 04 c4 UNITED STATEs PATENT OFFIcE.

FRIEDRICH GUSTAV JULIUS POST, OF- HAMBURG, GERMANY.

COPYING-PRESS.

SPEOIFIGATION formingpart of Letters Patent No. 636,551, dated November 7, 1899 Anplication filed May 9, 1899. Serial No. 716,140. (No model.)

To all whom it may concern.-

- Be it known that I, FRIEDRICH GUSTAV J U- LIUS POST, a subject of the German Emperor, and a resident of Hamburg, in the German Empire,have invented a new and useful Copying-Press, of which the following is a specification.

My invent-ion relates to a copying-press in which a pair of pressure-rollers are made to operate in combination with one or more rolls of moistened paper; and it consists of the peculiar construction and arrangement of parts, hereinafter more fully described, and illustrated in the accompanying drawings, in which Figure 1 is a side elevation, partly in section, of myimproved copying-press; and Fig. 2, a detail showing diagrammatically the arrangement of one pair of copying-paper rolls, the pressure-rollers, and an inclined table from which the documents to be copied are fed between the webs of the two paper-rolls.

Similar letters refer to similar parts through out both'views.

In the drawings a copying-press is illustrated which is particularly designed to produce simultaneously copies of the writingor print on both sides of a manuscript or of the writing from one side of two written or printed manuscripts placed one upon the other back to back. To this effect two rolls of copyingpaper a a, duly impregnated or moistened, are inclosed by cases or boxes Z010 and arranged parallel to the copying or pressure rollers Z Z, of india-rubber, in such a manner that both the paper-webs m m may be led through the said pressure-rollers and while the latter are turned drawn off from the paper-rolls, which are thus caused to turn about their arbors b 1) within the cases 7c. The manuscript documents or writings to be copied are fed from the table u and guided by the inclined slide 1) between the two webs m m and the pressure-rollers Z Z by causing the latter to rotate. 1

an arbor 0, traversing the frame A and journaled in suitable bearings thereof. Upon the other free end of each lever It bears a setscrew 10, under the influence of a weighted lever r, which swings about its fulcrum t, fixed to the frame A, and may be set at rest by means of asuitable support or stay-s, Fig.1. If the latter is turned sidewise, the weighted levers 'r are set free'to act upon the long arm of the levers n,.through the medium of the set-screws p, whereby the lower pressureroller is pressed gently against the upper roller Z in order to exert the necessary pressure upon the moistened copying-paper and the manuscript for taking distinct impressions from the latter while the upper pressure-roller is rotated by positive motion.

From the foregoing it is obvious that the four sides of a double-sheet manuscript, if duly. spread out, may be at once copied or simultaneous impressions taken on the two webs of copying-paper from one side of two manuscripts placed one upon the other back to back, which is of great advantage it compared with the roller copyin g-presses heretofore employed.

The webs 'm m of the copying-paper rolls, provided with the impressions taken from the manuscripts, may pass either over guiderollers g g to the reels w w, upon which they are wound, as shown in Fig. 1, or to a severingdevioe, (not shown in the drawings,)which is designed to cut the copying-paper into single sheets. The manuscript after passing the rolls Z Z may be detached from the web and caused to drop outward from the press into a suitably-placed casing.

The table it, with the slide o, is preferably attached to the frame A by a bolt as, about which itmay be turned into the position, as shown in dotted lines in Fig. 1, to render the copying-paper rolls accessible. To this end the covers of the cases is, containing the moistened copying-paper rolls a a, are fixed to or integral with that part of the frame carrying the table it and the slide 1!.

Suitable gearing on the axes of the reels w v w and the pressure-rollers Z Z, meshing with one another, are provided to secure a regular and positive motion of the operating parts.

The herein-described copying-press is particularly adapted for the employment of copying-paper rolls impregnated or moistened in accordance with my former invention, for

which I have filed a separate application, Serial No. 716,139, filed May 9, 1899. As the moistened paper-rolls are inolosed by the cases 7t 70, they are at any time ready for use, since the moisture is maintained within the paper-rolls, owing to their more or less tight winding up, as well as to their inclosu re within the cases k it.

Having fully described my invention, What I claim, and desire to secure by Letters Patent, is-

1. In a copying-press, the combination with a pair of revolving pressure-rolls, of two rolls of moistened tissue-paper so arranged relatively to said pressure-rolls that the latter will hold the tissues in a position to admit of the placing of the matter to be copied between them, for the purpose set forth.

2. In a copying-press, the combination with a pair ofvrevoluble pressure-rolls, of two rolls of moistened tissue-paper so arranged relatively to said pressure-rolls that the latter will hold the tissues in a position to admit of the placing of the matter to be copied between them, and means for guiding the tissues to different points after passing from between said pressure-rolls, for the purpose set forth.

3. In a copying-press, the combination with a pair of revoluble pressure-rolls, of two rolls of moistened tissue-paper arranged relatively to said pressure-rolls so that the latter will hold the tissues in a position to admit of the placing of the matter to be copied between them, and means for separately reeling said tissues, for the purpose set forth.

4. In a copying-press, the combination with a pair of revoluble pressure-rolls, of two rolls of moistened tissue-paper, an inclosing casing for each of said rolls having passages for the webs of tissue so arranged relatively tothe pressure-rolls that the latter will hold the two tissues in a position to admit of the placing of the matter to be copied between them, for the purpose set forth.

5. In a copying-press, the combination with a pair of revoluble pressure-rolls, and two revoluble rolls of moistened tissue-paper arranged relatively to said pressure-rolls so that the latter will hold the two tissues in a position to admit of the placing of the matter to be copied between them; of a feed-table for feeding said matter to the nip of the pressurerolls between said tissues, for the purpose set forth.

6. In a copying-press, the combination with a pair of revoluble pressure-rolls and two rolls of moistened tissue-paper revoluble in bearings above one of said pressure-rolls and in front of the other respectively, so that the two tissues will be guided over a portion of the peripheries of their respective rolls to the nip thereof, and a feed-table arranged to guide the matter to be copied to the nip of the pres sure-rolls between the twotissues, for the purpose set forth.

7. In a copying-press, the combination with a pair of revoluble pressure-rolls, and two revoluble rolls of moistened tissue-paper arranged near, and relatively to said pressurerolls so that the latter will hold the two tissues in a position to admit of the placing of the matter to be copied between them; of a feedtable for feeding the matter to be copied to the nip of the pressure-rolls between said tissues, and means for tilting said table away from the pressure and tissue rolls, for the purpose set forth.

8. In a copying-press, the combination with the lower roll of a pair of superposed pressurerolls, and a pair of two-armed levers in the shorter arms of which said lower pressure-roll is journaled, of a pair of weighted levers having bearing on the free ends of the aforesaid two-armed levers, for the purpose set forth.

9. In a copying-press, the combination with the lower roll of a pair of superposed pressurerolls and a pair of two-armed levers, in the shorter arms of which said lower roll is journaled; of a pair of two-armed weighted levers, and a screw adjust-able in the shorter arms of said weighted levers, said screws havin g bearing on the free ends of the longer arms of the pressure-roll-supporting levers, for the purpose set forth.

10. In a copying-press,tl1e combination with the lower roll of apair of superposed pressurerolls and a pair of two-armed lovers, in the shorter arms of which said lower roll is journaled; of a pair of two-armed Weighted levers, and a screw adjustable in the shorter arms of said weighted levers, said screws having bearing on the free ends of the longer arms of the pressure-roll-supporting levers, and means for relieving the latter of the pressure exerted thereon by the weighted levers, for the purpose set forth.

11. The combination with the framing of a copying-press, a pair of pressure-rolls revoluble in bearings in said framing, two reels for moistened tissue-paper likewise revoluble in hearings in the framing above one of the pressure-rolls and in front of the other, respectively, and a portion of an inclosing casing for each of said reels secured to the framing; of a feed-table constructed to guide the matter to be copied to the nip of the pressurerolls, and the complementary portions of the casings for the reels secured to said feed-table, and means for tilting said table away from the pressure-rolls and reels, for the purposes set forth.

FRIEDRICH GUSTAV JULIUS POST.

\Vitnesses:

ALEXANDER SPECHT, E. H. L. MUMMENHOFF. 

